Heavy rain associated with a low pressure system southeast of New Jersey moved into Somerset County during the early morning of the 12th. Three day storm totals (from the 11th through the 14th)  in the county averaged between three and four inches, although the majority of the heavy rain fell during the morning of the 12th. Flooding along River Road (Millstone River) in Montgomery and Hillsborough Townships reached into the basements of about 20 to 30 homes. Several vehicles were stranded on flooded roadways throughout the county. In Montgomery Township, tributaries to the Millstone River inundated roads. The worst road flooding was along River Road, Griggstown Causeway and Kingston Road. Somerset County Routes 601 and 518 were also closed. The Mill Pond Bridge was closed and remained closed because of flood damage. All the closed roads prompted school officials to cancel classes for the 12th in the township. In Branchburg Township, Neshanic Station nearly became an island because of flooding along Pleasant Run and the South Branch of the Raritan River. A few roads near the Millstone River were also closed in Franklin Township. The village of Bound Brook was under a volunitary evacuation order, which was rescinded when flooding along the Raritan River did not reach expected values. The flooding on the 8th and 9th and the flooding during this week damaged over 2,700 single family homes, over 640 apartment units and 220 businesses throughout the state of New Jersey.The Raritan River at Manville was above its 14 foot flood stage from 159 p.m. EDT on the 12th through 314 a.m. EDT on the 13th. It crested at 16.64 feet at 845 p.m. EDT on the 12th. The Raritan River at Bound Brook was above its 28 foot flood stage from 5 p.m. EDT on the 12th through 630 a.m. EDT on the 13th. It crested at 30.64 feet at 1145 p.m. EDT on the 12th. The Millstone River at Griggstown was above its 10 foot flood stage from 802 a.m. EDT on the 12th through 4 a.m. EDT on the 16th. It crested at 17.01 feet at 5 p.m. EDT on the 12th. Farther downstream, the Millstone River at Blackwells Mills was above its 9 foot flood stage from 2 p.m. EDT on the 12th through 1034 p.m. EDT on the 14th. It crested at 12.9 feet at 832 p.m. EDT on the 12th. The North Branch of the Raritan River at North Branch was briefly above its 12.3 foot flood stage from 3 p.m. EDT through 414 p.m. EDT on the 12th. It crested at 12.39 feet at 345 p.m. EDT. Farther downstream, the North Branch of the Raritan River at the village of South Branch was above its 7 foot flood stage from 628 a.m. EDT through 1105 p.m. EDT on the 12th. It crested at 9.95 feet at 730 p.m. EDT. Three day storm totals included 4.28 inches in Belle Mead, 3.90 inches in Bound Brook, 3.80 inches in Somerville, 3.64 inches in Middlebush, 3.60 inches in Martinsville and 3.08 inches in North Plainfield. The cold frontal boundary that produced the heavy rain on the 8th stalled in the nearby Atlantic Ocean. A series of low pressure systems lifted north along this boundary. Moisture from dissipated tropical depression number 22 was ingested into this system from near Bermuda. A high pressure system over nearby Canada and New England helped block any northward or eastward progression of the frontal boundary and the low pressure systems until the 14th. The heavy rain the past week cemented October 2005 as being the wettest October on record for the state of New Jersey since state records began in 1895.  The preliminary statewide average precipitation total of 11.91 inches was 8.40 inches wetter than normal and would also be the wettest month on record surpassing the August 1955 statewide average of 11.44 inches. October 2005 was also the wettest October on record at Atlantic City International Airport with a precipitation total of 9.04 inches.The October precipitation total in Trenton was 9.92 inches, 7.30 inches wetter than normal.

Flash Flood in SOMERSET, NEW JERSEY
From 12-OCT-05 05:28:00 to 12-OCT-05 11:00:00 (EST)
Location: COUNTYWIDE
Reported by: AWOS,ASOS,MESONET,ETC

Flood in SOMERSET, NEW JERSEY
From 12-OCT-05 11:00:00 to 16-OCT-05 03:00:00 (EST)
Reported by: AWOS,ASOS,MESONET,ETC